Finding the Fourth Proportional to 459,106.80, 688,660.20 and 159,487.80
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Solution
The fourth proportional to 459,106.80, 688,660.20 and 159,487.80 is: 239,231.70
Step by Step Solution
- Step 1: Write the proportion equation
459,106.80 : 688,660.20 = 159,487.80 : x - Step 2: Convert to fraction form
459,106.80/688,660.20 = 159,487.80/x - Step 3: Cross multiply
459,106.80x = 688,660.20 × 159,487.80 - Step 4: Simplify right side
459,106.80x = 109,832,900,245.56 - Step 5: Solve for x
x = 109,832,900,245.56/459,106.80 - Step 6: Final answer
x = 239,231.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.